Box-magazine for firearms



T. C. JOHNSON.

BOX MAGAZINE FOR FIREARMS.

APPLICATION FILED 0cr.10. 1919.

Patented Feb. 17, 1920.

2 SHEETS-SHEET I.

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T. C. JOHNSON.

BOX MAGAZINE FOR FIREARMS.

APPLICATION HLED OCT. 10. 1919.

1 ,331,155. Patented Feb. 17,1920.

2 SHEETS-SHEET 2- To ctZZ whom it'may concern "rfiomisio.Johns-omen new mv o mmet, AssIGnoR 'ro wmorznstrnn 'REPE'ATING ARMS 00., or nnwaaavnn, oonnnc'rronr, a oonronerron.

Be it known that LTHo As C. JOHNSON,

a: citizen of the United States, residingat 7' New Haven,- inthe'. county of New Haven and State of Connecticut, 'have invented a .newand useful Improvement in Box-Mega:- zines for Firearms; and I'do herebydeclare' the fol-lowing, when taken in connection with the aecompanylng draw ngs and the characters -of reference marked thereon, to be a full, clear,-and exact description of the same, andiwhichsaiddrawings constitute part of this application, and represent, in

1 Figure 1a plan view of one form which a. hoxeinagazine embodying my invention may assume, shown as cha'rged. 7

F'giiZ-a View thereof, partly in righthand side elevation and central sections. v v

Fig; .3-a; front view thereof. Fig. 4.a Viewthereof in transverse sec- F'g. 5+ detached plan view of therear of the segmental, rear, trough-like member.

- Fig. 6;av1ewthereof:m s de'elevation.

Fig. 7-a front J view thereof.

Fig. detached plan view of "the front trough-like member; V

Fig:9za view thereof in: side elevation. Fig; 10a front view thereof.

My invention. relates to an improved boX- magazine for firearms, and more particularly to that. class of box-magazines which are segmentalzin' form' and designed to receive' a single colu-mn of rim cartridges, the objectbeing to produceasimple, cheap and reliablerboX-imagazine of the type and characterrdescribed; V

With these. ends in view'my' invention consists. in asegmenta-l box magazinefor fire-1 arms, having front .and {rear segmentaltrough-like members telescoped one within therother; and secured together. My inven-' tion further consists in a segmental b'oX-. magazinefor firearms, having certain details of'construction as will be hereinafter described and pointed out in the claims.

In carrying out myoinvention' I produce from sheet-metal in suitable dies, -a* troughlike segmental rear member 5 and a segmental trough-shaped front member 6, both members being alike in curvature and'sub stantially alike in length, but the front member being deeper than the rear member and sufliciently narrower than the same to be Specification of Letters Patent;

partly in vertical Serial nd-329,783;

aed witli a tight fit thereinto, whereby -a;segmental 'boxmagazine' having concentric front and rear walls curved throughout th'eir lengthis produced with its side walls-in: the spaced relation required for confiningbetw'een them a single vertical c'olumn-of rimcartridges 7. VVhenthe front member 6 has been positioned within the rear membere as described, the two members are secured together, by rivets 8 passed through their side walls, or in any other suitable manner, as by brazing, soldering or welding.

At its with an open mouth 9,-"while its lower end E sm m mea i Patented FebLli, 1920. 1

upper end the magazine is formed is closed by a bottom plate 10, formed upon its-'side'edges with oppositely located upwardly and'inwardly turned flanges 11,'r'ecei ving' correspondingly located outwardly turnedjflanges 12, formedat'the lower ends ofth'e side walls of the front member. 6. I do not, however, limit myselffto any one way of constructing and assembling the bottom plate 10, as obviously that may be done in variety of ways.

Therear and; front segmental" members 5 I and 6. are proportioned in depth so that whenthe latter isitel'escop'ed into the former I its curved rear edges 13 (Fig. 4:), form the forward; walls of cartridge-head-receiving channels in whi'clrthe rims 7 of the cartridges;7; are confined, the said channels lt also :bel1lg'.COl1C611t11O Wltll the frontand rear walls of the completed structure.-

The upper end of the rear wall of the rear member 5 iscut away'as at 15 to fo'rm a clearance-opening. for the entrance of the bolt whiclrmoves back and forth 'over the top oftheimagazine when same is in position in theiarm,-.While the upper-ends of the side walls :of the 'saidzrearmember are bent inwardly lJO'f form the cartridge-retaining flanges 16' which prevent the'head ends of the cartridges from being prematurely lifted out of the magazine under the influence of the-followerespring. '17, which is located in the-nbottom of "thenboX-ma gazine and actsv I approved construction and arrangement, and I upon which the lowermost cartridge of the upomthefollower. 18, whichun'ay be of any retaining flanges 16 are cut away as at 19 to form the rear walls of vertical feedingand-loading notches 20, the forwardly and upwardly inclined forward walls of which are produced by the upper ends of the forward walls of obtuse-angled cuts 22 formed: in the upper rear cornersof the side walls of the front member 6. The vertical feeding-and-loading notches 20 (Fig. 2), thus produced lie directly in front of the forward edges of the cartridge retaining flanges 16 aforesaid, and provide for the feeding flanges 16, after whichthe cartridges are pushed back under the same, while their forward ends are crowded down into the mouth 9 thereof.

The obtuse-angled cuts 22 in the upper rear corners of the front member 5 are made sufficiently deep so that the uppermost eartridge of the column of cartridges in the magazine, is free to be pushed forward by the bolt when the same engages with the head of the cartridge .on its entrancerinto the clearance-opening 15 at the upper end of the rear member 5 of the magazine. As the cartridge is pushed forward by the bolt, its rim rides upon the horizontal lower edges 23 of the said cuts 22 until it reaches the lower ends of the upwardly and forwardly inclined walls of the said cuts, the upper portions of the said walls forming, as deend of the front wall of the front member 6. Y

scribed, the forward Walls of the feeding- ;and-loading notches 20. As the rim of the cartridge engages with the said walls, the head of the cartridge is gradually lifted in the said notches while at the same time the body of the cartridge is lifted out of the 5 forward end of the magazine mouth 9, the

upper edges 24 of the sidewalls of the front member 6' here forming an opening narrower than the diameter of the rim of the cartridge. The cartridge is thus lifted out of the magazine mouth 9 and pushed forward by the bolt which moves through a clearance-opening 25 (Fig. 10) at the upper For positioning the magazine in the receiver of the arm, the right-hand wall of the rear member 5 is struck outward at its upper end to form a stop 26 which co-acts with a fixed portion of the arm to pre-determine the location of the magazine therein.

the cartridges head of a cartridge.

adapted inform and size t o be one within the other and the edges of one member being utilized as cartridge-head guides.

2. A removable box-magazine for firearms, havinga trough-shaped, sheet-metal,

front member and a trough-shaped, sheet;

adapted in fomnand size. to be telesoo one within the other and the rear edges of the front member being utilized-tov formcartridge-head guides.

' metal, rear member, the said members bein 3. A segmental removable box-magazine for-firearms, comprising segmental w front and rear trough-shaped members, the sidewalls of the front member being telescoped within-the sidewalls of the rear member and the rear edges of the side walls of the front member forming the forward walls of cartridge-head-receiving channels concentric with the front and rear walls of the mags? zinc and adjacent to the rear wall thereof.

4:- A segmental removable box-magazine for firearms, having front and rear troughshaped members telescoped one within the other, and the adj acent upper corners of the side walls of the said, members being cut away to form vertical feedin'g-and-loading notches.

l 5. A segmental removable. boxmagazine v for firearms, having segmental troughshaped front and rear members telescoped cuts in the corners of the front member having the depth required to permit the uppermost cartridge to be fed forward in the magazine. a

6. A segmental removable box-magazine for firearms, 1 having segmental trough-r:

one within the other, the rear upper'corners of the walls of the said front member being cutaway to form forwardly and upwardly directed cartridge head guides, the distance between the side walls of the said front member being less than the diameter of the In testimony whereof, I have signed this shaped front and rear members telescoped specification in the-presence of two subscribing witnesses.

Witnesses:

DANIEL H. Vmmm, ERIK S. PALMER.

THOMAS c'. JoHNsonu 

